Earl Aed of Breifne

Earl Aed Ua Ruairc of Breifne (1040-), also known as Aed O'Rourke of Breffny, was Earl of Breifne during the 11th century. In 1090, Aed decided to become a vassal of King Einri of Eire after Einri assumed the High Kingdom of Ireland, keeping his lands as a vassal.